---
agentTools:
  projectIndex: https://docs.scope3.com/llms.txt
---

# September 2025 Emissions Model

## Traditional Radio measurement in open Beta

📘 [View our Traditional Radio methodology](https://methodology.scope3.com/channel_considerations#traditional-radio) or details on how emissions are calculated, including modeling assumptions for the new device type `radio` and broadcast methods `FM` and `AM`.

⚙️ [See supported API and media delivery input fields](https://docs.scope3.com/docs/media-delivery#traditional-radio-input-format) to begin integrating Traditional Radio delivery data.

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## Ad Selection emissions for DOOH

Scope3’s emissions model now includes ad selection emissions for DOOH properties.

* DOOH media owners are encouraged to provide [Ad Stack Declaration](https://docs.scope3.com/docs/ad-stack-declaration) to improve modeling accuracy.
* When contributed data is not available, a default is applied based on [the following assumptions](https://methodology.scope3.com/channel_considerations#ad-selection-emissions).

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## Market Benchmarks updates

* Digital Audio benchmarks are now available in CSP.
* The methodology behind Market Benchmarks across Web, App, OLV, and CTV-BVOD has been refreshed, now based on a larger set of campaign data considered reliable and representative. This change will result in some fluctuations across most countries and channels.

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## Bug Fixes

* Resolved an issue where the API returned 0 for creative consumer-device emissions on impressions served via digital audio properties.